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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>devm_kzalloc</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Linux Device Drivers" /><link rel="up" href="ch01s09.html" title="Device Resource Management" /><link rel="prev" href="re164.html" title="devres_release_group" /><link rel="next" href="re166.html" title="devm_kfree" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>devm_kzalloc</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re164.html">Prev</a> </td><th width="60%" align="center">Device Resource Management</th><td width="20%" align="right"> <a accesskey="n" href="re166.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="devm_kzalloc"><a id="API-devm-kzalloc"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>devm_kzalloc —
Resource-managed kzalloc
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">void * <b class="fsfunc">devm_kzalloc </b>(</code></td><td>struct device * <var class="pdparam">dev</var>, </td></tr><tr><td> </td><td>size_t <var class="pdparam">size</var>, </td></tr><tr><td> </td><td>gfp_t <var class="pdparam">gfp</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id3048079"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
Device to allocate memory for
</p></dd><dt><span class="term"><em class="parameter"><code>size</code></em></span></dt><dd><p>
Allocation size
</p></dd><dt><span class="term"><em class="parameter"><code>gfp</code></em></span></dt><dd><p>
Allocation gfp flags
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id3048139"></a><h2>Description</h2><p>
Managed kzalloc. Memory allocated with this function is
automatically freed on driver detach. Like all other devres
resources, guaranteed alignment is unsigned long long.
</p></div><div class="refsect1" title="RETURNS"><a id="id3048152"></a><h2>RETURNS</h2><p>
Pointer to allocated memory on success, NULL on failure.
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